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J.1.1 properties of ita on the dmd2050e – Comtech EF Data DMD-2050E User Manual

Page 304

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DMD2050E Universal Satellite Modem

ITA Operation

MN-DMD2050E Revision 2

J–2

J.1.1 Properties of ITA on the DMD2050E:

The DMD2050E output power remains constant before, during, and after state changes.

The DMD2050E output spectral density remains constant before, during, and after state
changes.

When ITA is enabled, the DMD2050E will automatically constrain the dynamic bit rate to
conform to the limitations of the terrestrial interface that is selected for use in the
DMD2050E configuration.

ITA can only be enabled when the DMD2050E is operating in the EBEM mode.

Operation of ITA and AUPC are mutually exclusive, both cannot be active at the same
time.

The code rate block size will remain fixed for the duration of the ITA operation,
independent of the bit rate.

When the link is set up for ITA, the symbol rate is entered by the operator, at a resolution
of 1 sps. The DMD2050E will automatically calculate the data rate.

The embedded channel is used for exchanging ITA messages between DMD2050E
modems.

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